Milk Tooth (IMAGE) Proceedings of the National Academy of Sciences Caption This is a partially sawn milk tooth from a young horse from ancient Mongolia, dated to ca. 1150 BCE. Credit PNAS Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.